Cellular carton



April 24, (1945. n. a RUTLDGE `2,374,382 1 CELLULAR CARTON Y "Filed June 15, 1942 3' Sheets-Sheet l y April 24, 1945- R. E. RUTLEDGE 2,374,382

0mm cmon Filed June 15, `1942- 3 sheets-sheet 2- ATToRNYs.

pril 24, 1945. R E, RUTLEDGE 2,374,382

CELLULAR CARTON Filed June 15, k1942 s sheets-sheet s ATTORNEYS.

Paiented Apr. 24, 1945 UNITED STATES PATENT oI-FicEj .,Av 2,314,382A v CELLULAR CARTGN Robert E. Rutledge, Kalamazoo, Mich., assigner' to Sutherland Paper Company, Kalamazoo. Mich., a corporation of Michigan Application June l5, 1942, Serial No. 447,033

2 Claims. ((1229-29) illustrated in the accompanying drawings is 'I'his invention relates to improvements in cellular` cartons.

The main objects of this invention are:

First, to provide a cellular carton of the double orfalse bottom type which is economical in the matter of material and may be produced in the knockdown form by machinery and quickly set up for use.

Second, to provide a structure having these advantages which when set up is rigid even when formed of relatively light material and very effectively protects the contents.

Objects relating to details and economies of the invention will appear from the description to follow. 'I'he invention is defined and pointed out in the claims. l

Preferred embodiments of the invention are illustrated in the accompanying drawings, in

which:

Fig. 1 is a perspective view of a cellular carton embodying my invention with the cover open.

Fig. 2 is a longitudinal section on line 2-2 of Fig. 3.

Fig. -3 is a transverse .section on line 3 3A of Fig. 2, the Vcover being shown partially broken away in open position and in closed position by dotted lines.

Fig. 4 is an enlarged fragmentary horizontal section on line i-Ji of Fig. 3.

Fig. 5 is' a pian view of the collapsed carton partially broken away.

Fig. 6 is an end view of the collapsed carton.

Fig. 'l is a fragmentary iront perspective view showing details oi thecover when in closed positlon. I

Fig. 8 is a pian view of the blank from which members 22 have tab-like feet 2l which engage the embodiment of the invention shown in Figs.

l1 to 7 inclusive is formed.

Fig. 9 is a fragmentary view partially in longitudinal section illustrating by full and dotted lines steps in the setting up of the carton.

Fig. 10 is an enlarged fragmentary longitudinal section illustrating by full and dotted lines further steps inthe setting up of the carton.

Fig. 11 is an enlarged fragmentary perspective view showing further details of the structure and the manner of folding.

Fig. 12 is a plan view illustrating another method of collapsing the carton.

Fig. i3 is an end elevation of the collapsed carton shown in Fig. 12.

Fig. 14 is an end view of the structure when collapsed as shown in Figs. 12 and 13 partially open, the cover being partially broken away.

formed of an integral blank and cut and scored as illustrated in Fig. 8. It comprises a main or outer bottom I having a rear wall 2 hingedly` connected to the bottom at 3 and a front wall 4 hingedly connected to the bottom at 5.

The rear wall 2 has a cover 6 hingedly connected thereto at l, the cover having a closure flap 8 hingedly connected thereto at 9. The clo- -sure 8 has a series of tongues III in its outer which is hingediy connected to the lower edge of the member il at' I1.

A second bottom member I8 is provided with l a glue flap I9 which is adhesively secured to the inner side of the front wall as shown at 20. The inner edges of these inner bottom members are hingedly connected at 2! to the longitudinal partition members 22 which are hingedly con-- nected at 23 and folded into side by side'relation.

The lower edges of the longitudinal partition the outer bottom member, thus forming an effective support for the inner ends of the inner bottom member. I'hese bottom' members have a series of transverse slotsI 25 therein.

The upper edges of the longitudinal partition members have notches 26 therein conformed t0 provide stops 2'1 for the transverse partition members I2 when they are in erected position. These transverse partition members are bifurcated to straddle the longitudinal partition The cellular carton of my invention and as members 'and preferably have T-shaped slits 28 at the crotch to receivey and frictionally engage the longitudinal partition members, the slits providing friction members 28 as .shown in Fig. 3. The transverse partition members terminate in `tab-like lugs 20 which engage the slots 25 when the transverse partitions are in fully erected position. As a further means for retaining the transverse partition members, friction Vtabs 3| are provided, at least at one end, out outro: the i upper edge of the front wall, these friction or retaining tabs folding down vwithin and frictionaily engaging the inner` side of the front wall when the carton is fully erected. The bifurcations of the partitions are formed so as to provide thev cover supporting tabs 32 which eii'ectively support the cover when in closed position, see Figs. 2 and 3. 'I'he tongues I0 are engageable with the hinge members I3 connecting the transverse partition members with the front wall.

With this arrangement, I provide a structure which is very strong when erected and very efv fectively protects and cushions the contents of the carton. The structure may be formed of suitable stock by simple dieng and scoring operations and the parts completely joined by machinery, being discharged from the machine in collapsed position.

The embodiment shown in Figs. 12, 13 and 14 is essentially the same as that described with the exception that the top member l I is longitudinally scored at 34 and it is collapsed upwardly as shown in Figs.y 12, 13 and 14. This structure may also be quickly erected.

I have illustrated and described my invention in practical embodiments thereof. I have not attempted to illustrate or describe certain modications or adaptations which I contemplate as it is believed that this disclosure will enable those skilled in the art to embody or adapt my invention as may be desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

l. A cellular carton comprising a blank of suitable material cut and scored to provide a main bottom, side walls hingedly connected to the edges of said main bottom, a top member hingedly connected to the top edge of one of said side walls, an inner side wall member hingedly connected to the rear edge of the top member and adhesively secured to the inner side of the other side wall, inner bottom members, one of which is hingedly connected to the lower edge of the said inner side wall member and the other end of which is provided with a hinge glue flap adhered to the inner side of the said side Wall to which the top member is hingedly connected, said inner bottom members being spaced from said main bottom member and having transverse slots therein, and longitudinal partition members hingedly connected at their lower edges to the inner edges of said bottom members and folded into side by side relation and having tabs on their lower edges constituting feet in supporting engagement with the main. bottom, said inner bottom members being slit to provide said tabs, said longitudinal partition members having spaced notches in their upper edges, said top member and the upper edge of one of said side walls being slitto provide a plurality of transverse partition members hingedly connected at their upperedges to the upper edge of said wall to which said glue ap is secured and to said inner side wall, said transverse partition members Itire lowerends of said transverse partition members being retainingly engaged in said slots in said inner bottom members,

2. A cellular carton comprising a blank of suitable material cut and scored to provide a main bottom, side walls hingedly connected to the edges of said main bottom, a topmember hinged' ly connected to the top edge or one of said side walls, an inner side wail member hingedly connected to the rear edge of the top member and adhesively secured'to the inner side of the other sidewall, inner bottom members, one of which is hingedly connected to the lower edge of the said inner side wall member and the other end of which is provided with a hinge glue ap adhered to the inner side of the said side Wall to which the top member is hingedly connected, said inner bottom members being spaced from said main bottom member and having transverse slots therein, and longitudina1 partition members hingedly connected at their lower edges to the inner edges of said bottom members and folded into side by side relation and having spaced notches in their upper edges and having tabs on theirvlower edges constituting feet in support# ing engagement with the main bottom, said inner bottom members being slit to provide said tabs, said top member and the upper edge of one of said side walls being slit to provide a plurality of transverse partition members hingedly connected at their upper edges to the upper edge of said wall to which said glue iiap is secured and to said inner side wall; said transverse partition members being bifurcated to form-crotches and to 

